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Define that the alkyl groups activating or deactivating to a benzene ring in electrophilic substitution? Are they o-, m- or p- directing?
using a solution of 0.1 m of a certain cation form a precipitate with 0.1 m solutions of all of these anionsnbsp co32-
What is the pH of a solution of 0.700 M K2HO4, potassium hydrogen phosphate. What is the pH of a solution of 0.450 M KH2PO4, potassium dihydrogen phosphate
how many square meters of floor space are there in a room which has 225.0 square yard of floor space 1 m=39.37 in, 1 yard =36 in.
A domestic water-carbonating kit uses steel cylinders of carbon dioxide of volume 250 cm3. They weigh 1.04 kg when full and 0.74 kg when empty. What is the pressure of gas in the cylinder at 20 degrees C
Explain whether the molecular structure of aspirin is likely to result in it being addictive? I'm comparing the structure to methylamphetamine
Calculate the total concentration of lead dissolved ([Pb]total) in a solution saturated with PbI2(s) and containing dissolved I- with a concentration of [I-] = 0.294 M. The solubility of lead is governed by the reactions shown below.
In the reaction Cd+CuSO4?CdSO4+Cu, what is the reduction half reaction. What is the reducing agent. Explain your answer.
what is the chemical reaction of this chemical equation. agno naci- agci
When a 2.00 g sample of RbBr is dissolved in a calorimeter that has a total heat capacity 0.6306 kJ*K^-1, the temperature decreases by 0.420 K. Calculate the molar heat of solution of RbBr.
A patient is given 0.050 mg of technetium-99m where m means metastable- an unstable but long lived state), a radioactive isotope with a half-life of about 6.0 hours. Explain how long until the radioactive isotope decays to 6.3 * 10-3 mg
A) Calculate the molar solubility of Ni(OH)2 when buffered at pH=8.0 B) Calculate the molar solubility of Ni(OH)2 when buffered at pH=10.0 C)
A 486 mL sample of water was cooled from 50.0°C to 10.0°C. Assuming a specific heat of 4.184 J/K g and a density of 1.00 g/mL, find the amount of heat transferred from the water to the surroundings.
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